It has the same energy as "you can't just cancel student debt, what about the next crop of students after this one?" Bro just cancel their debt too, and give housing to people who need housing.

If I'm being charitable in my interpretation they could be drawing attention to how systemic issues need proactive and preventative solutions to be solved most effectively, but they're more likely arguing in bad faith and trying to overcomplicate a perfectly fine immediate remedy because it conflicts with their ideology.