I expect it’s common for people to say (or at least be in a position to say truly, if they chose) “I know that climate change is real, but for some reason I can’t persuade myself not to vote Republican”. In some cases that will be because they like the Republicans’ other policies, in which case there isn’t necessarily an actual “valley” here. But party loyalty is a thing, and I guarantee there are people who could truly say “I know that Party X’s actual policies are a better match for my values, but I can’t bring myself to vote for them rather than for Party Y”.
(As a relatively-unimportant side-note, I’d like to add that sometimes it’s not so much a matter of party loyalty as it is party spite. For example, “Party X’s actual policies are a better match for my values, but I despise the groupthink-enforcing anti-intellectual cultural forces associated with their local supremacyso much that I’m going to vote for Party Y, not because Party Y would actually be any better on the free-speech/pro-intellectualism front if they took power, but because I feel better supporting the currently-losing side of an Evil vs. Evil conflict.”)
I expect it’s common for people to say (or at least be in a position to say truly, if they chose) “I know that climate change is real, but for some reason I can’t persuade myself not to vote Republican”. In some cases that will be because they like the Republicans’ other policies, in which case there isn’t necessarily an actual “valley” here. But party loyalty is a thing, and I guarantee there are people who could truly say “I know that Party X’s actual policies are a better match for my values, but I can’t bring myself to vote for them rather than for Party Y”.
(As a relatively-unimportant side-note, I’d like to add that sometimes it’s not so much a matter of party loyalty as it is party spite. For example, “Party X’s actual policies are a better match for my values, but I despise the groupthink-enforcing anti-intellectual cultural forces associated with their local supremacy so much that I’m going to vote for Party Y, not because Party Y would actually be any better on the free-speech/pro-intellectualism front if they took power, but because I feel better supporting the currently-losing side of an Evil vs. Evil conflict.”)