Start with the people. Not the far left ideologues but those closer to the center that are open to hearing another side. Show them first and foremost how you aren't the demonized picture the left paints you to be. Then respectfully challenge why they think what they think while offering your viewpoint at the same time. Engage in discourse that is constructive and provide evidence as to why you believe your ideals are sound and deserve support. Like that one left-wing lady who visited a Trump rally and realized that her picture of "Trumptards" was entirely false, and it opened her eyes to a worldview that she hadn't realized existed.

And if you want to play an even longer more effective game. Create competition and support people with similar ideals to your own. We need competition for Hollywood and corpos that are owned by the left. Not necessarily to promote your political ideals but to dilute the amount of poison being pumped into our culture. There's a desire for a market out there for media that doesn't have political manipulation behind it.

And for the longest game. Have children, raise them and educate them instead of letting the government indoctrinate them. Though it's unfortunate at the end of the day it is a numbers game and the more people you have on your side the better. That saying "change starts at the home" holds more weight than I think people realize.