No entry should be allowed to Non Hindus to Hindu temples in Kerala.Even in Guruvayur,a believer who belongs to another religion can enter if he pledges his belief in the religion and its rituals in writing.So there you are.Hindu temple only for Hindus.
No Xian should get into a temple.They will try to proselytize their religion inside the temple too if allowed.We learned what happened when our benevolent Kings allowed these semitic religions to flourish in Kerala.Now look at the Kerala community.Xians rule the State with money(mostly black money) and muscle power.
If anyone wants to enter Hindu temples,they can go to one of the four centers in Kerala that allows you to reconvert to Hindu faith;change your religion and enter.You are welcome to do that.
Sister Abhaya murder case is another example of Xian muscle power where even CBI is bribed and made a mocking stuff for the last 15 years by some rich and powerful Christian.