Take the time to actually read the slides. There is God's word in there, 5 minutes won't kill you.
The trouble with a lot of what you're doing here is that much of your posting in this thread is endlessly repeating a verse in Jeremiah about not following worldly customs. Which is all well and good but usually only means "don't do the things I want to talk about right now" rather than worldly customs in general.
The tired "the world does XXX, we should not be like the world, therefore we should not do XXX" crops up time and time and time again. Usually it's about Christmas, or Easter, or drinking alcohol, or listening to rock music, or whatever else any one particular poster happens to dislike today. Sadly the whole thing falls apart if taken to logical conclusions because the world goes to work. Should we therefore refrain from working at a job? The world wears clothes and eats food. Maybe we should stop doing that too? I'm sure there would be a few complains if I decided not to wear clothes even if I did justify it by claiming it was "worldly".
There's also the yawning difference between the worship of something and its inclusion in a harmless tradition. If chocolate eggs are so troublesome to you then by all means avoid them. Would you substitute them for chocolate chicks, or generic chocolate bars? Is it such a big deal if children get some generic chocolate offered in no particularly identifiable shape at a time that happens to be close to the time of the Spring Equinox? You know how kids love chocolate - most of the ones I've seen manage to wolf it down pretty well without accidentally bowing down to it.
Yes, "the first Sunday following the first full moon after the Spring Equinox" is a strange way to mark an anniversary. But so what? Some people associate it with pagan fertility goddesses, and the links to eggs and rabbits are pretty obvious. The fact some people do something on a particular day doesn't mean anybody else doing something else on the same day is in any way associated with it.
If you don't want to even use the term "Easter" don't use it. Nobody is forcing you to. Just be careful you don't retreat from so much you find you can't do anything because the bogeyman got there first.