Like them or not, nobody is responsible for the behavior of their parents, grandparents or other relatives. That goes for Romney as much as any other.
Bishop Romney is in a different situation.
Mitt Romney is a member of the Royal Family, the Romney’s existence is based on their role as Mormon leadership.
The Romneys came here in the first place to serve Joseph smith, they shipped over in 1841 for that purpose and have never wavered from that single minded purpose, they operate out of the church as their base, they only come out into the world for, business, and politics.
Just as his father was a Bishop, then a Stake President, so is Mitt, just as his Bishop father was hoped to be the fulfillment of the White horse Prophecy with his attempt to rule the GOP as President of the United States, so is Bishop Mitt.
The Romney generations are a continuance of a a Royal line within Mormonism.