Why France and EU do not go ahead to make Pakistan a part of European Union?
Because neither the EU nor Pakistan has either any incentive or any logical reason to make this happen.
instead of applying restriction or passing any "so called" resolution against Pakistan
If you are imposing sanctions on a country, it's inconceivable that you'd simultaneously think that that country would be a superb candidate to join your bloc. The same reason that the US does not invite Iran or North Korea to become an additional State of America.
Pakistan who holds around 30-40% of worlds politics.
Pakistan is certainly an important and populous country, but I'm skeptical of the '30-40%' claim.