Welcome to America, where not everyone agrees on everything!
Democrats come from a wide variety of backgrounds. Republicans generally don't. Guess which model is more likely to survive in a truly representative government.
It's not about "allowing". If your target demographic is a shrinking percentage of the voting population and you don't change to adapt, you die out. It's natural selection.
WELCOME MUSLIM IMMIGRANTS; SUPPORT THE LGBT COMMUNITY; THE MUSLIMS PROTEST LGBT BEING TAUGHT IN OUR SCHOOLS; THE MUSLIMS PROTEST LGBT BEING TAUGHT IN OUR SCHOOLS