I don't think the positive connotations of 'celebrate' are what's important. Celebrate in this context I think would mean 'to make known', this can be done by showing the effects of the lack relationships.
I was helping my friend with his general maths before the general and advanced half yearlies. I found general alot harder than advanced, there was a bunch of stuff i'de never been taught, but then again i knew how to answer all my advanced questions except the area of a parrallelogram.
Communism failed in 1917
The countries that have been known as communist have never been the classless societies by which communism is defined, there have just been less classes and more division between the two.
Communism will never succeed so long as it is called 'communism'