The big ones have arguably been that way since the beginning. The original XBox was a stripped down and fancified computer, down to using the USB protocol for the controllers.

Normally, it would be the electoral system that would act as the check. But otherwise, it doesn’t put any other limits based on political belief and affiliation (other than having allegiances to other political powers). If the majority wanted to elect someone who wishes to abolish the democratic election system, then that is what they will get.

That’s possibly for the better. Being able to bar given political alignments or affiliation from office would either need to be so specific so as to be useless (a modern nazi typically has little directly to do with the original), or be broad enough that it’d be a dangerous thing, since it could be used in either direction.