<human>: Created a throwaway account for this, as we have friends on reddit, but am really hoping the reddit community can give some advice!

My girlfriend and I have been together for over three years now. We're happy and know that we want to marry each other. The only issue is my girlfriend's parents. They have an issue with me because I am (Sikh) not the same religion as their family (Hindu). We all reside in the UK, and my gf and I, are both British born.

This does tend to be an issue with a lot of Indian relationships, due to the close-knit communities, the old-fashioned values and arranged marriages. Whilst current and future generations are becoming more modern/westernised/open with our views, at times our previous generations aren't quite keeping up with the times.

My girlfriend has told them over 18 months ago now I believe, and they still don't acknowledge my existence. They refuse to talk to her whenever she wishes to speak about me, and they've said they don't agree with the relationship. They've been far from enthusiastic to meet me (I've met them once at an event my gf attended, and there was minimal interaction on their part.)

The last thing I want, is for my girlfriend to lose her parents because of me. But she's finding it very difficult to juggle both sides of her life.

What would be the best plan of action here to ensure they know we're serious about one another, and that I would like to meet them so they can get to know me and realise I'm a good guy?

Please be as blunt as possible if need be!

I'll try to reply as much as I can if you need any further info, it is late in London, so I might not be up for much longer. Sorry and thank you in advance!

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Girlfriend and her family are Hindu, they don't like me because I'm Sikh. I want them to like me and acknowledge our relationship.