The problem with tribal (political) identities is that to hold independent and opposing tribal ideologies (ie pro-choice but also pro-gun) is isolating from all groups. Thus, many people end up choosing to belong at the expense of the inconsistencies in the respective group they have decided to be a part of.

I'd say that to hold anti-capitalist ideals while liking Musk is reconciled through varying lenses. Musk can be idolized for his impact on the environment and moving various initiatives forward such as self-driving. One could argue that Musk is capitalist, but it could also be argued that Musk would drive these "good" initiatives even in a non-capitalist structure, thus the respect.

I'm not supporting musk, but merely illustrating how a certain level of rationalization can take place, counter to your insinuation that "opinions may not be thought through." It's the same thinking that also gives way when understanding the psyche behind various voters in this recent election.