So. . .you believe that the only 'human' genetic material used for Jesus was Mary's? That would mean, once again, that Jesus would have been born a female.
Incorruption is different from justification; it is a gift given saints, and uniquely to Mary in her Assumption into heaven.
Yes, incorruptible flesh is what we are given at the resurrection. As to Mary being 'assumed' into heaven, if you believe she was 'assumed' upon her death, I agree. If by 'assumed' you mean Mary didn't die a physical death, well. . .that may be what Catholics believe.
I beleive what the scripture tells me: that Jesus was born of Mary through the overshadowing of the Holy Ghost; since other genetic parents are not mentioned, while the conception of Jesus is described with specifics, I do not believe there was another human agent genetically involved. The scripture also tells me He is male.
If by 'assumed' you mean Mary didn't die a physical death...
That Mary did not experience physical death is, I believe, an allowed belief of the Catholic Church, but the belief that she did experience death and then was assumed into heaven is also an allowed belief, and the one I hold. The latter appears to be with patristic support as well.