Thatcher is in theory doing everything legally, every single vote she gets gets counted and the people in theory can remove her by voting on the opposition
In theory Irkutsk, Vyatka and Taboritsky (if someone believes that Alexei is alive) are the most legal Russian factions, does it give us a reason to support them?
Thatcher for all her faults is genuinely opposed to the idea of collaboration and wants what is best for her people. Zykov uses democracy as a front for his own power, much as he was perfectly willing to collaborate to remove the Soviet Union from power even if it resulted in the near destruction of Russia.
So does Zykov, he cares about Russia. And ROA was tricked, Hitler in TNO promised them control over the land they liberate.