Premarriage Advice(asset protection)

I plan on asking my GF to marry me...we have been dating for 5 years and I expect an easy yes after humiliating myself in a yet to be determined probably public setting.

My SO unlike myself has very valuable assets that will be passed to her through inheritance. I do not want these assets. Her family has worked very hard to provide them.

However based on that line of thinking(taking something you did not work for) I know of many men who have been raped through divorce proceedings and I do not plan to join their ranks in case of unforeseen reasons down the road that result in the marriage failing.

She has not asked for a prenup but I am not opposed to offering her one. I am sure she would be very open to signing it in order to protect those assets. I would want to use this rare opportunity to add provisions and clauses to the prenup to make it more fair/balanced for both parties. In exchange for her assets' security I would want some form of a marital asset waiver.

I do not plan to profit off her through marriage as long as she does not plan to profit off me through divorce. Post Marriage my wages should never be her wages, and my assets if acquired solely from my funds should never be our assets.(no joint bank accounts or investments)

I am not really familiar with marital law...Would it be wise or even possible to draw a line in the sand and separate all current and future assets before marriage if your partner has more to lose from not doing so?

If you were in my position or if you have already been in my position...what would you do in my place and am I missing something else that should be considered before potentially forfeiting all my bargaining power at the alter?