But, other than the monarchy, there's no other part of the government that can tell Parliament what it can or can't do, correct?
Correct. the monarchy couldn't either really. Technically it can, but that doesn't happen anymore.
Of coiurse, that doesnt mean we shouldn't get rid of it. We shouldn't
And there are a lot of things I would change about our govt if I could
It's different here though. Our legal system and govt has evolved over many hundreds of years. If we were to start from scratch now, of course I'd say it should be different.