Male plants will not turn a female plant into a male plant. A male plant will turn a female plant into a pregnant female plant, tho.

Cannabis seeds have two chromosomes. Either they have two 'X' chromosomes and are female, or they have one 'X' and one 'Y' chromosome, and are male.

When you stress a female plant into giving pollen sacks, the pollen has only two 'X' chromosomes, since there was no male to donate the 'Y' chromosome. So all resultant seeds are guranteed to either be duds, or they will be females. No other result is biologically possible.