Please get rid of JEW, JEWED, and SPIC. Plus, any other slurs that I haven't seen yet.
Of course there are many words which are offensive. However they do exist and they do appear in the dictionaries on which Scrabble games are based.
For example, if I am called a "Grammar Nazi" then the word 'Nazi' is being referenced to mean that I am too fussy about grammar rules and not with the intention of suggesting that I was a "Nazi" or behaving like one. In that case I should not complain about the word "Nazi" being used nor would I expect the word "Nazi" to be expunged when it is only being used as to say that I am excessively obsessed with the minutae of grammar rules. Context is all.
This whole subject has been debated in these forums many times and, basically, the conclusion was that, if a word appears in the dictionaries, then it can be used in Lexulous - no matter how offensive it may be. Commentators have suggested that complaints may be directed to those who compile the dictionaries themselves rather than to websites who merely reference their entries.
For interest, you might like to look at the Urban Dictionary website:
https://www.urbandictionary.com/. Offensive some of the entries may be yet free speech is of paramount important. You may come away feeling that many entries are discussed rationally, humorously and intelligently. I would naturally welcome further debate if you so wish. I hope none of this spoils your enjoyment of this website which gives so much pleasure to so many people.