GenZedong

I think you are going in on the wrong foot here. Distinction between petty bourgeousie and bourgeoisie is not relevant here. The commenter is saying landlords being leeches is why small business owners are skimping on paying good wages (which in turn causes the "labour shortage"). This is fundamentally wrong because it is based on false assumptions. Supposing a small bussiness owner is given possession of their rented land, there is no guarantee that the money they save will be used to pay better wages. In reality the guarantee you can guarantee the opposite. They will pocket the difference because that is how the logic of capitalism functions. They will just pay the market wages for the labour anyway.

The talk of which classes will or should be antagonised and which won't be is detached from the topic.

The petite bourgeoisie as a whole has bourgeois aspirations and most will likely act against the interests of the proletariat, but I've never heard any communist seriously claim that they need to be executed (although it depends to what degree they fight back during a revolution; if they try to retain their capital through violence, it will have to be violently expropriated). They will need to be re-educated for their new proletarian role, and the feasibility of doing so depends on many factors, but there's no need to kill someone who doesn't resist

I would specify that the manager at the McDonalds, while not bourgeois, does serve their interests and is a class traitor that also needs to be done away with

Sounds about right to me. I'll chip in with some more theory if you don't mind.