Men are stronger and faster and not just a little bit. If you allow men in women's sports, (basketball, soccer, boxing etc) then women will not be competitive in those sports.

Yes but trans women on hormone replacement therapy are not as strong as cis men across the board.

Male puberty changes body composition in non-reversible ways. Muscle distribution, composition, quantity and bone density, all favor men that have gone through puberty.

Comparing them to cis men is a red herring, they aren't competing again cis men

Are they stronger than cis women?

No, they’re not. Not after about a year of HRT.