If Matt Stone and Trey Parker decide to make fun of you, the best recourse is to just let it happen. Stone and Parker are two of the best modern satirists. Even if one had the skill to take them on, their response would be devastating. It would be a particularly terrible decision to do this just before the next season of South Park began.
Enter the promo for season 20 of South Park:
The sucking sound you hear is that of the collective puckering buttholes of progressives.
It will take them some time to pull their underwear free, although to be fair, they still have quite a bit wedged up there from last year. Season 19 of South Park presented a brilliant take down of identity politics, “rape culture” theory, and other progressive nonsense. The progressive-minded, who typically find South Park’s digs humorous, did not enjoy the digs when directed at them.
I suspect that progressives are not going to like this episode.
As for the issue over the US National Anthem, I find it to be more odd than petty. Kaepnernick’s protest revolves around several lines from the song’s third stanza:
And where is that band who so vauntingly swore
That the havoc of war and the battle’s confusion
A home and a country should leave us no more?
Their blood has washed out their foul footsteps’ pollution!
No refuge could save the hireling and slave
From the terror of flight or the gloom of the grave:
And the star-spangled banner in triumph doth wave
O’er the land of the free and the home of the brave.
I suppose one can find that objectionable, however, one would have better argument were it part of the song anyone actually sings. I cannot recall a single instance of anyone singing the third stanza. To be honest, I did not know the song had a third stanza until the controversy happened. I doubt most people who sing or admire the anthem knew about the lines, let alone believed them to hold true today. I do not think most people would agree with hirelings and slaves being killed because they “defected” (one cannot truly defect if one has no actual recognition as a citizen of a nation).
There are a number of legitimate, real race-based issue Kaepernick could protest over. To protest over an obscure line no one sings feels like a reach.
Toy Soldiers 
If South Park ever made fun of me, I’d take it as a compliment.