I would disagree. My son was in the midwest his freshman and sophomore years and he played every weekend in the fall on a high level while playing football on Friday nights. My middle son went to Jupiter and pitched the first game and was back for Friday night football. Guys who are serious about baseball make it work. Both of my sons were QB's and played defense. During the summer, they were 95% baseball and the football coaches understood it. They both did not start the first game of each year because they did not do most of the summer stuff but were the starting QB's after the first game. Football coaches may not like it but they will do what it takes to win games.
I can't speak for your state but I know in SC, the top 5 baseball players my son's senior year were all 2 or 3 sport athletes. It was the same in TN my middle son's senior year. The #1 quit the other 2 sports his senior year but had played 3 sports up until that point.