There is no Hinduism without yoga and no yoga without Hinduism.
Can’t be true what you said. Because I was born in a fairly religious Hindu family who worshiped and prayed to the Gods every day, and when I left India at age 20, I did not know anything about yoga, did not ever see my parents or older siblings practice yoga. Only after coming to America I found out about yoga and what it entails. Now in my 70’s, I have never practiced yoga, but pray to Hindu Gods often.