What have Democrats ever done for you? I don't know - your most important issues seem to be gun rights and Catholicism
Anti-War and anti-American interventionism/imperialism
Drug war
Student loans
Corporate money in politics
Healthcare
Guns used to be important. They still are, but I'm at a point where I no longer care and I've reverted to my bread and butter: Anti-War, drug war, healthcare, corruption.
Democrats are bad on literally all of the issues I just listed. I voted third party in 2012 to protest Obama because of it. When obama was campaigning people made excuses for his administrations having terrorist lists and kill lists that killed innocent people. Mandark and I fought over it heavily. The iraq war is the main way I got into politics, something many Democrats defended once Obama was president despite protesting while Bush was in office. This is a big reason I supported Tulsi before she proved herself non-viable and before I learned her secret Imperialism.
Democrats do good things, but most of it is muddy. You mention sanctuary states but Obama administration deported an insane amount of immigrants.
For the issues I've cared about Democrats have always been lesser than shit. ACA was a good step forward but I'm currently paying nearly 300 dollars a month for a plan with a 6k deductible. Even Obama's main legacy is shit.
So when Democrats started to rally against guns during a time when they were calling the current administration Nazi's it was pretty easy to drop them.
On all the issues I listed Democrats have refused to budge on the national level because they benefit from the money from big pharma and and wars. The democrats have had a mentality that is utterly stuck in the status quo. Any reason I vote for democrats now, unless they prove themselves to actually change as a party, is only s temporary truce between the two of us.
I've disliked democrats since at least 2009 or 2010 and haven't identified as one since 2009.