The Jain Philosophy lost its basics and became arrogant in nayanmar's time.
For that matter Hinduism purposefully has multiple gods for the development of Individuals and allows them to worship in multiple ways( at the same time once the person develops, it guides him to one god - The supreme Brahman)
In the same house father worships siva, mother amman , son ayyappan and daughter baba. ( True secularism) It helps people to realise that God is one but in multiple forms. The Pooja room has minimum 10 Gods.
With ONE GOD, people will fight that mine is superior and yours is inferior. Till there is anothe God, they fill fight and once they become 100% majority they fee void. That is what happenning in European/American countries.
That is why Hinduism guides to One God principle through multiple Gods. No sinners. Hope is through next birth,.