People talk about a lot of things, it doesn't automatically qualify it as important and furthermore if you raise an issue, be prepared for other points of view regarding that issue to be raised. Including the point of view that the issue is one of not much consequence compared to many other issues in this world.
Most issues relating to constitutional monarchies are less important than other issues going on in the world. That doesn't stop people talking abou them on boards dedicated to discussions about royalty.
Was I even addressing you personally to begin with? I can tell you not. Therefore I have no idea how you would know what I know about other people's concern with other issues, many of which do in fact enter discussions on other topics.
I didn't say you were addressing me personally. You said
"Since Catholics in the United Kingdom have had to put up with the Act of Settlement since its inception, I hardly see why some choose to pontificate on about something like this at this point in time when they have nothing to say about other forms of prejudice that affect far more than one family."
I'm asking why you're so sure that people talking about this subject have nothing to say about other forms of prejudice that affect far more than one family. The fact that they aren't saying it here, since it would be off-topic, doesn't mean they have nothing to say about it.
And as I said, the principle isn't a huge or important one, which is probably part of why the Act of Settlement isn't going anywhere soon.
Well, I guess we're going to have to agree to disagree here. I think religious discrimination is an important issue, and this is a high-profile example. If it comes to the point where a monarch or an heir to the throne is insisting on marrying a Catholic, there's probably going to be negative responses among the public about having to quickly change a law in order to suit the personal wishes of the heir. As long as this law is an anachronism based on prejudice with an ugly history, it should be dealt with. IMO, at any rate.
The government has far more important things to take care of. It does have to do with Prince Charles's feeling about which faiths he'd like to be defender of because chances are he'll be king before his son. He's postured on this issue by making noises about being "defender" of faiths, William's "feelings" have not been expressed afaik.
This is a different issue from the faiths which Charles feels comfortable defending or not. That affects the whole issue of whether to have an Established Church. As long as CofE is the Established Church, he'll be Defender of the Faith whether he wants to be or not. If the senior representatives of the church feel that his marital antics prevent him from being recognised as such, the Archbishop of Canterbury is (as far as I know, at any rate) at liberty to refuse to crown him. This business about Catholicism and the line of succession is a specific case where one particular branch of Christianity is being discriminated against, unlike all the other branches of Christianity and all the other religions. Even with the CofE as the Established Church, the monarch could marry someone of any other religion, including non-Christian religions and including atheism, but not a Catholic. I can see an argument for requiring that the consort be a member of the CofE; I can't see any argument for the consort being able to be anything s/he wants to be, but not a Roman Catholic.
Were it anything more than posturing, then perhaps William wouldn't have to worry about losing his dynastic rights if he married a Catholic.
I don't see how it could be avoided with the current law in place and the precedent of removing the Earl of St Andrews, Lord Downpatrick (and I think Lord Nicholas Windsor), as well as Prince Michael, from the line of succession.