The most tactful thing is to not turn it into a binary. Our task as RW is to push 'as many' people to be 'as much' RW as we can. Every positive step in that direction is a bonus. If there are Mallu people who eat beef but support RW and the Army, then they are obviously better than any person who does not support the army.
We take whoever we get on our side, we are not stingy
Just make a list of issues that matter to us and nudge the ecosystem in that direction one act at a time. (Quora is a good example of how we shifted the whole narrative to the right within 3 years.) We have been greatly successful in that regard; Today even the hardcore left uses Pakistan as an example of a bad metaphor, unlike earlier when they were peddling the equal-equal theory.
I remember seeing Yechuri in an interview, "why is the government treating us like we are Pakistanis". So even he has subconsciously admitted that Pakistan is an enemy state. This change in attitude has happened after they saw that the winds on the ground have shifted and they risk becoming irrelevant if they keep pussyfooting on the issue of national interest.
That is what I also said about all forms of regionalism and language chauvinism which is a form of sub-national identity. Find points of consensus and push ahead instead of trying to settle every single thing every single time. We are just 70 years into the freedom we received from 1000 years of Abrahamic rule where they tried every trick to create fault lines. It will take time to heal. Ajit Doval has himself said "nation building is an exothermic process. It's natural for there to be friction when different groups within a country interact with each other." It takes multiple decades for a composite national identity to evolve.
If someone is a beef eater Muslim family but they are sending their son to JKLI regiment, then who can fault them. They are much better than a pure vegetarian Sudheendra Kulkarni.