Does this individual fulfill the qualifications to run for the office as set in the Constitution?
If so, then there is no constitutional reason this person should not be allowed to run for office, and be seated if winning the election.
Of course, we constantly have these faux-outrage threads which are designed to be caricatures of how the left sees the political right.
"If you will not fight for right when you can easily win without blood shed; if you will not fight when your victory is sure and not too costly; you may come to the moment when you will have to fight with all the odds against you and only a precarious chance of survival. There may even be a worse case. You may have to fight when there is no hope of victory, because it is better to perish than to live as slaves." - Sir Winston Churchill