Need advice

I'm a muslim and my bf is a hindu . We are both in love and already in relationships for 1 year . But both of our parents doesn't agree . Why? Whats wrong with falling inlove with other religions and races ? He's willing to change and convert his religion to follow mine , but with my family still against it . Can they think about my happiness? I dont want to be with someone who i dont love . We are both serious in this relationship and want to get married soon after i finished my study and he's gonna work in UK , and want me to follow him and stay there with him . How can i not falling in love with this person who already planning our future together and willing to through the family conflict with me . I don't want to put my family's feeling aside , but this is my life right? I want to be with someone who make me happy and complete , but they just don't understand  that 😭