I suppose the main difference between you and me is that even though I see the adoration and worship of dead people and 'Mary' as being idolotrous and wicked, I am fully aware that there are many brothers and sisters within Roman Catholicsm who are Born Again and full of the Spirit of God, where amazingly some of these people are even caught up with praying to dead people.
On the other hand, I am certainly aware that there are many within Roman Catholicsm who have no understanding of Spiritual matters, where these sort of people also exist within both Evangelicalism and Pentecostalism as well, but a line is certainly crossed when you declare that the Person and Ministry of the Holy Spirit is demonic. Unlike yourself, I am always wary of attributing even the work of the numerous charlatan or questionable 'ministries' within my ranks to that of the devil, as I am well aware that even questionable individuals can still have the Holy Spirit working through them, even if only on the odd occassion.
This is why we all need to keep Matthew 12:31-32 in mind;
Therefore I tell you, people will be forgiven for every sin and blasphemy, but blasphemy against the Spirit will not be forgiven. Whoever speaks a word against the Son of Man will be forgiven, but whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come.
Leaving aside my Evangelical brothers and sisters, I am of the strong opinion that for those who have experienced the things of the Spirit such as tongues, prophecy, healings etc, when they turn away from the Lord by repudiating the Person and Ministry of the Holy Spirit, even when they try to repent of their sin I suspect that there is often no value in their repentance.