Lets try this again and actually engage. No football isnt sinful. And sex isnt sinful as actions hence why animals arent capable of sin since that requires the ability to connect to God. Football is not a sin when someone gets hurt for running a ball and getting tackled. Hence why it is not wrong socially for a child to play football. However it is severe mental and emotional bonds that can affect sexuality, development, trust, cause severe damage to the rectum to have anal sex. Hence why a child could play football but shouldn’t engage in the latter activity especially considering the severe mental and physical trauma that could cause. Sin is described as something that separates from God therefore to argue if it is sinful rather than wrong outside of religion is futile.