You said your wife "attends" all pujas at home and also "performs" pujas. So, she is a Hindu. Did she voluntarily convert into a Hindu because she is impressed by the greatness of Hinduism or did you force her?
Does your wife go to Church? Does she read bible? Is she still a Christian or did she stop being a Christian?
Temples have customs not to allow non-Hindus. You need to respect those customs. You can't mould a temple according to your thoughts. You must mould yourslef according to the temple's customs.
If you want to worship God, you can worship him anywhere in any form, not just in a temple.
You seem to have no respect for temples. You just want to politicise the issue.
