This relatively short book by Mary Eberstadt documents the efforts here in the US and elsewhere to delegitimize traditional Christian beliefs, to deny their believers an equal place in the public arena, and (what's more) to ostracize and exile those believers from positions of responsibility in private and public institutions.
Ms. Eberstadt explores a lot of case studies to support her views, most of which will be familiar to people following the news. There's Brendan Eich, forced out as Mozilla CEO when it was revealed that he backed the Proposition 8 ballot initiative against same-sex marriage. There's the Obama Administration's attempt to force the Little Sisters of the Poor to provide "contraception coverage" to their employees. There's the effort to compel Catholic Charities to offer adoption services to same-sex couples. Various efforts to restrict/ostracise religious home schooling. And more.
It's a tough life out there for a conservative Christian, in other words. Eberstadt's anecdotes are many and telling.
I think her argument is slightly off-center; there is some hostility to Christianity, but it drops off significantly for the "respectable" fraction of believers; you know, the ones who mix in a healthy dose of Progressivism and avoid saying much about sin when it comes to matters dealing with the naughty bits.
And (for example) James Damore found himself out of a sweet Google job, not because he was too religious, but because he dared to utter heresies against the Progressive social justice gospel of diversity and inclusion.
So I suspect that it's not Christianity per se that gets one in trouble; it's one's dissent from Progressive orthodoxy that brings out the witch hunt.
That said, after adjusting the target, Eberstadt makes a lot of sense that we need to bring back a modicum of respect into the argument, a willingness to deal with opinions that some might find wrong-headed, in order to (say) put babies into adoptive homes more efficaciously.