My husband blindly respects and loves his mother knowing that she is ruining our relationship but he never supports me telling me that he cannot spoil his aakhirat. His mother abuses me n my children and curses us and recites wazifas with amals of black magic in his absence. My question is that aakhirat is only from mother what about the wife whom you married?? Does islam only teaches to go to jannat theough your mother and wife is only to legalise sexual demands??

it's not like this person have to take care of every one in family, every individual having its place, mother having own rights but wife and kids having own, Man have to take firm decisions to manage family,
I pray for you and your family, may Allah Subhnatala change your husband thinking