Like people, not all fish get along. In fish, however, compatibility depends upon species. Angelfish get along with Mollies and Barbs, but will nibble at the fins of guppies. An Oscar will kill and eat your Angelfish faster than you can say 'oh.' The babies of live bearers are always on the menu.
Tropical fish are a lot like political parties, and while you might want to believe Republicans eat babies they don't. They will, however, disown if certain liberal behavior patterns begin to manifest. If fact, there is a host of therapies, conversion tactics, and brainwashing techniques they have no problem applying to their progeny in order to force them into the tiny minded Conservative mold. God forbid they should have a child who is a free thinker.
They are also the ultimate segregationists, and I'm not just talking about race. You need to be a member of the right religion for them to even acknowledge you. That's a throwback to their Crusader days. They quietly look for heretics and phony Christians so they can be labeled. They have no problem shunning their next door neighbor if he or she doesn't fit the mold.
Most of them support the Idiot Jerk in the White House. In their minds he is 'the Chosen one,' in fact they gone so far as to tell him so. Unwittingly, they've contributed to his insanity. Not that they care, of course. Both their minds and his are compatible. Like the voracious Oscar, they will attack and eat anything, even their own kind and then gloat. They love what is happening up in tiny, little Portland. They think is shows their superiority when in truth it demonstrates their need to overwhelm and control anything they view as being incompatible.
They are a minority group who needs to be segregated from the rest of the community. Maybe, after they lose the election this November, they will all voluntarily decide to move up to North Dakota. Now, wouldn't that be nice?