Blasphemy against the Holy Spirit is unforgivable because the avenue to forgiveness is rejected ... slandered. In attributing the work of the Spirit of God to the person of Satan, the Pharisees are guilty of opposition to the Spirit of God ... the only Spirit that can change the will ... who can draw the unrepentant to repentance. These Pharisees rejected the very thought of repentance. Their willful unbelief was the final denial of the offer of grace.
A recent survey by the American Worldview Inventory 2021 from Arizona Christian University reveals some troubling realities. Out of 176 million Americans who identify as Christians, just 6% hold a recognizably Christian worldview. The majority of those surveyed as self-identified born again Evangelical Christians do not believe in the Holy Spirit as a "real, living being." Instead they identify the Holy Spirit as a mere "symbol of God's Power or presence". Is this also blasphemy?