Raising my children Jewish

Tonight, bring Christmas <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a>, my boyfriend and myself told my mother as it came into conversation that we would be raising our children Jewish. My boyfriend is Jewish, myself and my family are Christian. And my mother was visibly upset. I asked what her matter was and she responded with “my issue is you should never deny Jesus.” Which I understand. However my reasoning for wanting to raise them Jewish is later on in life if they want to learn more about Christianity they would be ADDING Jesus rather than taking away if it was the other way around. We want our kids religious beliefs to always be positive and not a means of taking away if that makes sense. Anyways- I just wanted to vent and or ask for advise on how to handle my mother not being a fan of the idea