For example, if I were to refuse to be in fellowship with a person because they did not support Trump (or, by the same measure, if they did not support Biden), I would be guilty of idolatry.
Would you refuse to be in fellowship with someone who worshiped Satan? Or the man of lawlessness? ( the beast )
2Cor 6:14; Do not be bound together with unbelievers; for what partnership have righteousness and lawlessness, or what fellowship has light with darkness?
2Cor 6:15; Or what harmony has Christ with Belial, or what has a believer in common with an unbeliever?
2Cor 6:16; Or what agreement has the temple of God with idols? For we are the temple of the living God; just as God said, "I WILL DWELL IN THEM AND WALK AMONG THEM; AND I WILL BE THEIR GOD, AND THEY SHALL BE MY PEOPLE.
2Cor 6:17; "Therefore, COME OUT FROM THEIR MIDST AND BE SEPARATE," says the Lord. "AND DO NOT TOUCH WHAT IS UNCLEAN; And I will welcome you.
2Thes 2:2; that you not be quickly shaken from your composure or be disturbed either by a spirit or a message or a letter as if from us, to the effect that the day of the Lord has come.
2Thes 2:3; Let no one in any way deceive you, for it will not come unless the apostasy comes first, and the man of lawlessness is revealed, the son of destruction,
2Thes 2:4; who opposes and exalts himself above every so-called god or object of worship, so that he takes his seat in the temple of God, displaying himself as being God.
Rev 14:9; Then another angel, a third one, followed them, saying with a loud voice, "If anyone worships the beast and his image, and receives a mark on his forehead or on his hand,
Rev 14:10; he also will drink of the wine of the wrath of God, which is mixed in full strength in the cup of His anger; and he will be tormented with fire and brimstone in the presence of the holy angels and in the presence of the Lamb.
Rev 14:11; "And the smoke of their torment goes up forever and ever; they have no rest day and night, those who worship the beast and his image, and whoever receives the mark of his name."
In a way you are right, but I doubt people vote for Biden or Trump because they like their personality. People vote for candidates based on their values.
One side supports LGTB, transgender agenda, abortion, and legalizing recreational drugs. The other side does not. This is why people support someone. Not because their name is Trump or Biden.
One side supports closed borders, and only allowing "legal" immigrants to come to this country. Just about everyone in the US has immigrant descendants. But back in the civil war days, and even during World War I and World War II.
Immigrants came to America to become Americans. They fought for America in these wars. They pledged allegiance to our flag and wanted to become US citizens.
Some immigrants still want to do these things. But many do not, there is open rioting in the streets. Burning the US flag in the streets, and anti-nationalism taught in schools and Universities.