I think the US is better because we have legalized same-sex marriage, and I’ve always supported it. But it’s hard for me to say that an issue is such that “reasonable people can’t disagree” with policies that differ between the US and Switzerland.

I agree there are some issues that are beyond politics. But there is an impulse to expand that category beyond what fairly fits in it. The debate and compromise attendant in politics is how societies achieve consensus, and prematurely stifling it creates problems.