I have my own home already, I dont plan on hoarding any.
It is if a society allocates its resources properly. There are plenty of countries with great public housing.
Incorrect.
TL;DR: Landlording is the catalyst for a range of societal and economic woes. There are more than a few ways that this is viewed as bad by many people.
2 examples for now:
Many consider it morally corrupt to charge people for shelter purely for profit. As shelter is considered a need and requirement for life, profiteering off of it should not be something favored by society. Many people view essential needs as something that could or possibly should be provided, or, at minimum, not something people should be permitted to use as a means to "leech" off of other humans. The reason this should be frowned upon as a "role" individuals are allowed to perform is not only the moral aspect of preying on human life, but also the fact that landlords often have a very "fuck you, pay me" attitude when it comes to rent seeking. This is strongly evidenced by current events, when many people are low on income or otherwise displaced from work due to a pandemic (in other words - not their fault). It's not uncommon for people to be getting harassed or threatened by landlords with eviction and potential homelessness right now - be sure to factor in that many places may not be allowing new tenants currently or hiring, so rehoming or finding work may be difficult and homelessness would be likely. The worst part is that this is not a new behavior from landlords. Many behaved in this fashion prior to current events. We just get to see it more now because of the high number of people unable to pay.
The second and more economic reason, when keeping in mind the predatory nature of landlording ("fuck you, pay me"), is the coupled predatory nature of corporate run institutions a la banks/lenders ("fuck you, pay me or I take everything you own now and in the future or I put you in jail."). The reason your landlord is so predatory is likely because they were also preyed on. Lenders keep giving out high-risk, debt based loans. So the landlord is buying a house/apartment with money they don't have, and therefore ABSOLUTELY rely on rent to keep paying off the bank. This should also be frowned upon and has a direct line of effect on those they prey upon, and those their prey are preying on. It's a nasty cycle. How does this reflect the landlord issue rather than banking? Simply, it permits the existence of landlords, landlords in situations like this are nothing more than middle men between tenants and banks who truly own the property.
An argument would be: "But listen, if I spend my hard earned money- assuming I'm NOT taking out a debt based loan- on a building, I should be allowed to do with my property as I please. Besides, it's not like I force people to rent from me. They want to!" Here is why that's a weak argument. First off, I guarantee if you ask people if they'd rather NOT pay rent. They'd say yes. Second, they HAVE to pay for a livable space in nearly all instances. You can't just start building a home wherever you please for free - at least speaking as someone from the US. Third, you purchased property with the sole intent of profiting off of human basic needs. Gross.
This is where there comes contention among some leftists of many varieties; Where do realistic acceptable property rights begin and end? Should we secure basic needs for all people? How do we resolve this? Free housing? Community developed? State developed? What about covering costs of homebuilding and allowing self-build or people hire it out? What if we remove land rights and just divvied it up? Do we first tackle things that support landlords like lenders?
These examples ignore a huge amount of additional issues across the full range of social, economic, and political issues regarding renters, rights to life, trade, monopolizing violence, property, prison industry, and so on. Lots of reprehensible "systems" can be traced back to this topic, and nearly all of it relies on some person charging others for shelter.
If you'd like to read a little of what Marx had to say:
It's such a garbage practice, even liberal economists recognize it as a type of market failure that should be eliminated as much as possible. Not that liberal politicians actually do anything about it, it's just funny that it's such a glaring flaw in the logic of capital that even the priests of capital can't really cover it up.
Even Adam fucking Smith was against rent-seeking.
Whole lotta words to just say "WAAAAH" and "DERP". Nobody is interested in reading your anti capitalism bullshit.
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"You go. I'm just going to stare at the lake and think about how I almost just killed a baby."