it seems to me that there is some confusion on the part of what a tithe is. in this response and in some others i've seen the word "want" is in the dialogue. all of us who are against tithing hold the definition of tithe to be a mandatory payment as was in the days of the old testament. it is the 'mandatory" that we disagree with as does scripture itself.
2 Corinthians 9:7 Every man according as he
purposeth in his heart, so let him give; not grudgingly, or of necessity: for God loveth a cheerful giver. you ask why we wouldn't want to as if we have said we don't want to. we have said nothing like that. we are saying, as it is written, that it is not mandatory. i try to give more than 10% of my increase but not because i think i have to. i give it because i want to.