What are the pros and cons of having the majority in congress of the same political party as the president?

Pros

Political parties encourage public participation.

Political parties create checks and balances.

Political parties distribute information throughout society.

Political parties water down special interest investments.

Cons

Political parties can be abusive.

Political parties encourage polarization.

Political parties prioritize themselves.

Political parties sacrifice individuality

racism and segregation.

are their options?

otherwise i can't