See if your neighborhood has a flag for it, or fly your city's flag. It's patriotic enough to placate the neighbor but also signals local solidarity.
Obviously the pirate flag is choice.
But real talk, maybe you should fly that pride flag. Show some solidarity and stick it to the haters. You have ever right to and it's showing that supporting these causes are normal and good. If everyone who cared didn't show a flag, then people will think it's just trump country.
I personally do a rainbow American flag from June to July so I can keep it up both months.