On the point of the electoral college:

• The EU leaders have influence, but very little actual power, so the system doesn’t matter, whereas the President of the US has immense power.
• The system used in America is very different to the EU. In the EU, it is a group of commissioners electing their leader. In America, it is the people electing a President (so it should be a popular vote), but then for some reason there are the middle men of the electoral college. It makes no sense at all. Worse, it’s undemocratic.

The constitution is inflexible, because it doesn’t make arrangements for a frequent review. It also requires a two thirds vote to change, which is rarely achieved in the age of highly polarised politics.

The British constitution, by contrast, is unwritten and so flexible, and many codified constitutions have lower amendment thresholds.

I take your point about the constitutional conventions, but I meant that in general, the GOP wouldn’t want one and the Democrats would, because, by and large, they are happy with it how it is. They may think they have the numbers now, but it isn’t a mainstream idea because they know that it is a huge risk. I could’ve made that a lot clearer, however.