No, if you mean, do I consider myself to have negative ‘feelings’ towards individual Protestants. After all, my best friend is Protestant!
But am I ‘indifferent’ to Protestantism? No. I consider that while various Protestant groups (and this is a subtle but distinct difference from any Protestant person) may have some of the truth, they lack the fullness of truth which is found in the Catholic Church (and again this is a subtle but distinct difference from any Catholic person).
IOW, you, All, may be closer to God’s teachings in your knowledge and earthly life, than I, a Catholic. But Protestant Christianity is ‘farther’ from Christ’s teachings, lacking fullness, than is Catholic Christianity.
Do I wish that Protestantism did not exist? Only in that Christ’s desire for unity would have us all be part of the one, holy, Catholic/catholic apostolic church.
So I am not negatively inclined toward any person, and my feelings towards the teachings are only that I wish that they embraced the Catholic fullness so that we would all be one.
I don’t think that’s anti.