Personally, I think Alito should be confirmed. He seems to have an excellent track record as a judge. The only objections Democrats/liberals have are over ideological differences, and I think it sets a very, very bad precedent to deny someone a Supreme Court seat on that alone.
It’s true, he could overturn Roe v. Wade, he could vote in the majority of other rulings that deny Americans their civil liberties. But, America asked for it. One of the duties of the president is to make appointments to the Supreme Court, and it seems to me he’s well within his rights to pick someone who shares his ideological views. If we didn’t want a man like Alito on the Court, we should have voted differently in 2004.
I hate to see Roe overturned, but I think it will take a major loss of constitutional rights before America wakes up and starts making intelligent choices at the ballot box.