Everyone should vote for whomever represents them best despite whatever letter follows their name, and everyone should know all of their local and state options to be able to do so. Please do the same for your primaries if you at least want a slim possibility of having a decent option. Ranked choice voting would help a lot, but engagement at least helps a little. Hell, third parties got elected this year even.
People blindly straight party ticket voting after skipping the primaries simply because they just hate the other team is how all the shitty entrenched old guard like Pelosi, Manchin, and McConnel (extra especially McConnel, who even republicans hate) stay in power on both sides. And forgetting about the primaries is how we end up with such weak ass candidates as Trump and Biden. It’s so good damn infuriating.