Rebuttal point 3: women had periodic uncleanness but could simply not serve at that time; male priests were also periodically unclean and still served.

Point 3: Women did have regular uncleanness from monthly cycles, but it would be easy enough for them to not serve during that time. Male priests were also unclean on occasion (touching unclean things, wounds, sickness, bodily issues) and simply didn't serve during those periods, then resumed. The restriction cannot be explained by periodic uncleanness since men had the same issue and were still priests.