You're shifting your argument. Both AOC and Omar are Democratic Socialists (in same vein as the traditionally dominant parties of Northern Europe), not anarchists or marxists. Neither is calling for the abolishment of the US or its governmental institutions, but rather for its growing wealth and income inequality to be addressed. If anything, the loudest voices for abolishment of state institutions today are coming from the right.
It's not inconsistent of Illych to try to dismantle a system that (you claim) he benefited from. The Jacobin progressives in the US are not inconsistent to try to dismantle the foundations of their host system through the procedures of that system. You would have to limit your observations to prima facie statements to argue that they are not intellectually dishonest crypto-marxists (BLM excluded). Illych and BLM are perhaps more intellectually honest than AOC and Omar. ++good for them.
and Northern European Democratic socialist parties are neither traditional or dominant unless you only look at the very immediate past and future.
From one point of view, those reasonable anarchists and marxists are only seeking to "improve" the US. From the other point of view they are trying to abolish it. You're forced to pick a side. Jacobin calls for revolution demand binary outcomes. It's exactly analogous to Illych proposing that education can only be improved by abolishing educational institutions. There's no middle ground.