Waheguru ji ka khalsa
Waheguru ji ki fateh

Richachhaba ji,

Your findings are very true but mere talk cannot solve these problems.
One must practice what one says !

Unless one set's an example, it is very hard to influence and change the mind set of others.

Guru Gobind Singh ji formed the Khalsa Panth an equal platform for Gursikhs (Singhs & Kaurs) One has to partake Amrit follow the Rehat and let go of their caste.
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/sikh-youth/14462-caste-system-in-sikhism.html
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=14462

There has to be a common ground on which the marriage is based. Like religion, custom, financial or social standing, caste, love etc

It is upto the individual what is his / her priority !

One can choose to lead or follow others.

Waheguru ji ka khalsa
Waheguru ji ki fateh