You can look at America with an optimistic or pessimistic point of view. I prefer optimism.
I know that there are failures, mistakes, poor decisions, etc.
If you want to be negative, be negative, but we should honor the accomplishments and sacrifices of everyone who has helped make our country and world better, safer, smarter, stronger. We have a lot to be proud of, and very, very thankful for. July 4 is Independence Day, a celebration of America. It's perfectly appropriate to celebrate and honor everything good in our country and our country's history.