Are Millennials the most conversion-friendly generation ever?

[I spent the winter writing songs about getting better]

I say yes. Not counting Gen Z because it's too early, but definitely yes in terms of both becoming "None" and converting to a different church than what one was raised in.

Although both of those things becoming common was actually probably popularized by Generation X...or actually probably the youngest cohort of Boomers (after all someone born in the late 50s/early 60s would come of age in the mid to late 70s, which is about when both "None" identification amongst nonobservant people and denomination switching became common place.)

[John Dule]

There were a few generations in Northern Europe starting in the 800s that were quite "friendly to conversion," albeit despite the fact that conversion wasn't particularly friendly to them.

[I spent the winter writing songs about getting better]

There were a few generations in Northern Europe starting in the 800s that were quite "friendly to conversion," albeit despite the fact that conversion wasn't particularly friendly to them.

I had an admittedly US-centric view in mind when asking it. Basically apply it only to the US.

[100% pro-life no matter what]

There was a pretty sizeable Catholic-->Evangelical pipeline in the late 20th Century, especially as the South grew in population.  A result of this is that there are actually more Irish Protestants than Irish Catholics in the United States today.

[Big Abraham]

There were a few generations in Northern Europe starting in the 800s that were quite "friendly to conversion," albeit despite the fact that conversion wasn't particularly friendly to them.

I had an admittedly US-centric view in mind when asking it. Basically apply it only to the US.

Even within the U.S., I'd still think the generation of the Second Great Awakening beats any generation currently living.

[Хahar 🤔]

The answer is obviously no. Even if we're limiting it to the United States, religious revival in the nineteenth century was a force whose power is incomprehensible to us now. Consider how the burned-over district received its name, or even just consider the burned-over district's most prominent product, Mormonism.

[Mr. Smith]

Yes.

Just not in the same sort way OP has in mind.