No. An opinion is neither true nor false. It is simply an opinion. It may be strongly supported by evidence or not. But it is still neither true nor false.
If you’re speaking philosophically, then almost everything is opinion. For example, you may not exist, and your post is just a figment of my mind. Maybe even Free Republic is just an illusion!
That nonsense aside, I’m going to take a big step and believe there’s a reality apart from me. “Strongly supported by evidence” is good enough for me.