For the most boring example, take taxes. Republicans believe in a flat income tax, or abolishing the government’s power to do that,
whereas Democrat’s believe in a progressive tax system where different amounts of income get taxed at progressively larger rates. Or abortion, where its as simple as supporting or not supporting the right to do it. Other examples that would stop me from voting for even a moderate like Gov. Baker unless in extreme circumstances include healthcare, where the GOP supports cutting federal programs and allowing the private sector to decide, and the most radical seventeen senatorial democrats attempted to abolish the private market, or election reform, where democrats support outlawing gerrymandering and the electoral college and potentially switching to ranked choice vote, whereas Republicans would like to conserve the system we have now.
That isn’t to say I completely disagree with the GOP: I support the Afghan War and am a little wary of gun control. But in 99% of the time, I would vote for a Democrat. I wouldn’t even vote for any democrat: Rep. Gabbard (HI-2) is too friendly to Assad and Sen. Manchin (WV) makes Sen, Kaine (VA) look like an anarchist. But I’d generally vote straight ticket Democrat, and that isn’t a bad thing: they align more with values like Liberalism and Globalism, and I just believe in them more than Conservativism and Nationalism.