There was a time when “evangelical” was fairly well defined. I still think it applies to groups such as the Southern Baptists or Assembly of God, but there are so many Baptist and Pentecostal groups, as well as others, who diverge enormously from traditional evangelical positions on doctrine and morals.
Furthermore, there are huge numbers belonging to newer “non denominational” churches that defy classification. They tend not to have “liberal” or “conservative” doctrine, they rather have little doctrine at all. They don’t really rule out anyone. What little doctrine they do have tends to be evangelical.
Then there are historic “liturgical”, baby-baptizing churches, such as LCMS, ACNA or the Anglican Continuum, who are now very much separate from other parts of their faith tradition that are deeply mainline, or ultra liberal. They very much believe in supernatural realities, and some fixed dogmas. they would be much more “evangelical” than the Baptist convention (denomination) that recently flipped over on abortion and same sex marriage.
I think C. S. Lewis said it best when he argued that the “High” church people, not just in Anglicanism but across the board, should join forces with the “Low” church people. Their common enemy is the “Broad” church, which dominates much of Christianity today. Even though the non denominationals seem harmless, I think in the long run “evangelical lite” leads to eventual abandonment of all Christian beliefs in the long run.