A five year sunset on all legislation (even if a few programs are exempted and who believes them) is a foolish and irresponsible idea. It means uncertainty about whether any legislation or policy would continue—this will produce economic chaos. It also requires Congress to reconsider the entire federal government every five years. That's a project which Congress is unlikely to be able to complete in time—and that will lead to political chaos. Of course Republicans want that.

This is a proposal for undermining our democracy. That kind of nihilism seems to be the only goal of the Republican Party today. If the GOP gets its way, it’s a permanent serfdom.

They desperately want to gut the safety net, worker wages, and consumer protections so they can feed the rich more gold. Radical, to say the least.

The radical proposal to let Medicare and Social Security lapse, explained-
https://www.vox.com/policy-and-politics/2023/2/16/23598343/social-security-medicare-sunset-joe-biden-rick-scott