Q: How does a party of groups that hate each other stay together? Muslims hate gays. Blacks hate Hispanics. Jews hate Muslims. Muslims hate Jews. Blacks hate gays.
A: They all hate America more than each other.
Criminals are able to put their differences aside while engaging in a crime. They fall apart in the aftermath. These monsters will stick together until they have totalitarian power. Then they will fall on each other. Every such criminal takeover of a nation resulted in purges amongst the new power structure. An example is how Hitler took out the SA Brownshirts after he had control.