The value of btc will drop if this happens like a regular stock market crash
Well yeah. This is what happens any time you bring buyers and sellers together in a liquid market. Having said that, I'm no finance expert but I have watched the stock market for years and bitcoin resembles it in a lot of ways. Corrections and spikes and so forth.
I agree because bitcoins price is unstable and if price is high enough and those who stock their bitcoin for long wait for this halving well sell their all coins it can be followed by panic selling because they earn profit since halving occurs, maybe as u can see now price is spiking that maybe due to many people are buying bitcoins for now and surely it will follow by a big crash if the price of bitcoin well reach to 1000$-3000$ just what like happen for the past 2013.