You're missing the point. I have always acknowledged the Crusades, the Inquisition, the excesses of the Spanish when they settled the Southwest, the intolerant theocracies established by some of the early colonies, the Salem Witch trials, etc. etc. etc.
And you are missing the truth when you say things like: "you are in error that Christianity was or has ever been 'spread by force'.". This types of statements are false. Incorrect. Wrong. Not true. Contrary to what actually happened.
Now if you want to hand waive and claim the direct evidence against such statements is "missing the point", then why did YOU make that point in the first place?
But while some of that enriched and expanded the authority and power of some opportunisitic monarchs and unscrupulous Church leaders, I would guess that nary a soul was made a Christian by any of those things. If anything, such tactics would make any normal person recoil from the Church and in fact that is what happened. During the Medieval crusades and Inquisition, the state of the church was quite dismal. The pope finally had to order people to show up at least once a year under threat of excommunication. The restrictive and unkind treatment of people by the more rigid colony church groups also drove people far away form the church. And I doubt now that many come to the faith by being told they're going to hell.
Christians become Christian through positive persuasion, attraction, and being introduced to the One who makes us Christian. And it is THAT and nothing else that accounts for there being more Christians than any other faith in the world. It is not to escape hell or fear of punishment or retribution that makes Christians but rather attraction to something quite wonderful.
These ideas are called things such as: speculation, wishful thinking, delusional perspective, happy ignorance, excluding the disagreement, and so forth. This too is false. The purpose of the Inquisition was to uproot non-believers and force people in an area to pretend to be more devout than desired, under penalty of imprisonment or death.
Are you really so naive as to believe that Christian expansion through forceful, barbaric, and bloody means suddenly stopped the carnage to give people "free choice" about their religion? How foolish!
You yourself identified that it would most likely drive people away from the religion, so how is it that you think so many people were converted after such invasion if not by force and coercion?
Perhaps you should try reading that wikipedia page, as it very clearly describes several instances that show you to be incorrect.