Dealing with Parents

I'll keep it short, my parents are the typical telugu parents with extreme casteism, racism and sexism deeply ingrained. Don't get me wrong, I'm not a snowflake liberal either. They are extremely judgemental and from what I've realised in the last few years, they're just not nice people on general. For example, we just had a huge debate with me on why I should stop tipping Swiggy delivery boys because nowadays they are well off too (for context, I'm 25 and make 30+ lpa, my parents live in aparna gated society). Another argument was regarding how my future wife should stop working for 4-5 years once we have a kid which ended in them concluding I'm immature to suggest a 1 year break. Now, my girlfriend of 7 years is north Indian and given that my family is so non-accommodating I already know that it's going to be a rough path ahead. There have not been any love marriages in my family in the past, let alone intercaste/interstate ones. My mom still keeps saying from time to time that she still hasn't "agreed" to our marriage. Has anybody faces a similar situation? How do I navigate our marriage and our lives after that? I have no guilt in prioritising my partner and her parents over mine.