Will there be a church in the future?

[Minimalist]

After a long period in which the persecutions of Christianity were really spasmodic, local, [and] involved very few people, suddenly in the middle of the 3rd century, the year 250, the Emperor Decius decides that Christians are a real enemy of the Roman order,

The first is good enough. That is exactly right. All the bullshit that Hollywood spills out is simply that. Bullshit.

The simple fact is that until the mid 3d century there were not enough xtians around to be a problem.

So all of your horseshit about "multitudes" of xtians being set on fire by Nero is a load of shit.

http://www.jesusneverexisted.com/persecutions.html

The Roman Empire lasted more than a thousand years and persecuted Christians for fewer than twelve of them. The 'Christian Empire' also lasted more than a thousand years and persecuted non-Christians through all of them.

But even Decius was not specifically aiming at xtians.

After a half century of chaos, Decius tried desperately to restore stability and unity to the empire and the ‘peace of the gods' (pax deorum). He appointed roving commissioners, who required all citizens to honour the traditional state gods by sprinkling incense on a brazier or pouring a libation for the health of the emperor. Loyal subjects received a certificate of compliance (libellus).
The real consequence of Decius's policy (which was not directed specifically at Christians) was to cause division within the ranks of the brethren, isolating the extremists.
Christian historians gleefully regard this as the "first real persecution" because some fanatics refused to toast the emperor's health and provoked the state into retaliation.