Not quite sure what exactly you are referring to here.
I have no problem with people paying their respects to victims or to those from all sides who lost their lives engaging in violence. As long as it does not impact on events today. If Mary lou wants to remember the canary wharf bomber, I couldn't care less, just so long as any political decisions she makes today or tomorrow are not influenced by her personal feelings. And the same goes for politicians of all hues. If everyone were to have the same moral point of view, there would be no peace process and people would still be living under the shadow of gun and bomb attacks etc.