How long is long as it pertains to hair? How short is short?
Paul lists women having shorn hair as being too short, but Paul does not nail down for men how long is too long.
It depends upon the culture that you live in - and if wearing long hair would be a stumbling block for winning people to God - don't wear long hair.
Hair, dresses, jewelry, etc - stressing these a little or a lot - will not bring America back to God.
How shore it too short? How long is too long? Who would want to even get close to testing it? If you think your hair might be getting to long, cut it. If you think your hair is is getting close to too short, let it grow. If you think a skirt might be too short, don’t wear it. It’s not hard. If God said He doesn’t like men having short hair, why would you want to take the chance of having hair that’s too long? If God hates the blending of the sexes; if he wants men to be 100% men and women to be 100% women, why would you want to be 95% or 63%?