Sikhism is close to hinduism body and soul,
The hinduism that based on the Vedas .
If you'd read the Bani of the Gurus, and principles of Sikhism, its very different from Hinduism. But this ain't the forum to discuss it and I'd prefer continuing our discussion through PM.
The Sikh religion is made by gurus who were hindus by birth and followers who too are khattri or jatt hindu ,later on joined by lower caste hindus.There was no conversion from islam to sikhism discounting few muslim sufi saints who coperated with sikh gurus.
If we talk about the Gurus, most were of the Bedi sub-caste. In fact the first 6 Gurus were all related and of the same Bedi sub-caste, which is now classified as one of the backward classes in Punjab.
And none of the Gurus were Jatts. You do have a lot to learn about Sikhism.
The sikhs and hindu can inter marry and its not taboo.,its surprising in a caste ridden hindu .They visit each others place of worship.
U never see such collaboration among sikhs and muslims.
I talked about the same point in my post that you quoted. In terms of visiting each other's places of worship, some Sikhs do visit mazars and dargahs of Sufi saints. Faridkot hosts a major mela every year to commemorate the Sufi saint Baba Farid. Sikhs throng that mela in huge numbers.
Whatever we have talked about has hardly any significance for Indian Sikhs support to the Indian nation. Sikhs in India continue to serve their nation to their utmost capacity.