I am a Catholic and I agree with you about being a Catholic - if we are discussing the concept of sainthood.
However, if we are discussing whether or not a confessing Christian is a martyr for the faith - if he/she refuses to renounce faith in Jesus Christ and faces death as a consequence, then that is a classic definition of the Christian martyr. It matters not whether he/she is accepted as a canonized saint. Just MHO.
Yes, this is what I mean. The definition of a “martyr” is “a person who is killed because of their religious or other beliefs”, so there are martyrs of various faiths, etc.
I think someone had mentioned sainthood in their post and I had this on my brain.