Moving back to the cities lol. Raising the rents and pricing poor, black, and brown people out of their homes. Replacing community structures with mixed-use developments full of corporate chains.

In a way, settlerism recycled.

My concern is what to do with them after a revolution. I mean yeah material conditions will change over that time (it's certainly not happening tomorrow) it's just...they're very artificial,

Wow comrade that's hardly a reason to

but they are homes for people. Idk

Oh! Houses, of course haha, yeah what do we do with them after the revolution?

I dont really like this take there is no continuity from the frontiers to suburbs

Fair enough. I haven't really thought or investigatd much about the actual transformation of rural settlerism into "urban settlerism" (if the latter can be said to be a thing).

white people didnt make subrubs to have more space tho thats a reason given now a days, they did it because they were racist.

This seems rather reductive. Certainly both things can be motivating factors. They can even be factors reinforcing each other. White people fearing "overcrowding" and "overpopulation" on racial grounds is certainly a thing.

And the mechanics of it are so fundamentally different that it feels honestly offensive to compare them, settler colonialism without genocide and stealing land just isnt settler colonialism

Suburbanites have certainly used violence (both their own and of the state) to ensure that the suburbs remain "racially pure" (ex - redlining and overpolicing of black communities) and to expand the suburbs (stealing people's housing spaces by clearing them for building inefficient infrastructure). They also use violence to clear the homeless (to raise their property values) and block dense development (denying others housing).

Furthermore, the intensely polluting and consuming lifestyle of the suburbanites (because of their reliance on cars) creates a huge mortality burden on the whole planet.

Let's also not forget that the American suburbanites carry a large amount of guns, often with the explicitly stated fear of "undesirables" stealing their property.

Also, obviously the mechanisms for both rural and "urban settlerism" will be different, the same way that developed urban capitalism functions differently than early capitalism.

When a developer buys a farm willingly sold by farmer or some corporation and makes a bunch of shitty, identical, environmentally destructive, and depressive houses no one is being colonized,

The people who are colonised were already colonised a long time ago. My argument is that just because settlers ran out of farmland to steal doesn't mean that settler rule and many of its corresponding socio-economic characteristics won't be perpetuated into the urban phase of development.

Also suburbs are not unique to na they are pretty common thru out the world they are just much more pronounced in na.

Yes, but quantity can become a kind of quality on its own.