If it were against the law, local authorities respected and warned of their desire to be left alone. If numerous attempts to teach rails in the past 100 years had resulted in death, rejection of gifts, attempts to peaceably repel by firing arrows without heads and threatening until the visitor leaves. Yes, I'd feel the same way.

I'd be sad that someone had thrown their life away needlessly and foolishly in the face of overwhelming evidence that it would be an idiotic thing to do.

Would you feel the same if he had died having broken into someone's home after being repeatedly warned not to and that the householder was hostile and armed?

"Best of intentions" is debatable - to push his religious beliefs on others. That's arrogance not good intent.