I have tired with many my assets altcoin like ethereum, litecoin, atom and bitcoin cash price going down. What better have I do with my assets keep holding or cut lost and take profit with investing in other altcoin or bitcoin.
So you've lost a bunch of money by buying a handful of useless altcoins, and your solution is to instead put your money in to a bunch of other useless altcoins? That's simply crazy. Either stick with bitcoin or cash out altogether and choose a different asset.
I do not agree with OP. If the holders start selling their coins that will make a massive crash in the markets
That's not what OP is saying. There is a difference between selling your bitcoin and spending your bitcoin. Selling on an exchange produces downwards pressure on the markets. Spending bitcoin for goods and services helps it to circulate, be used, be adopted, grow, develop. Indeed, spending bitcoin and growing adoption is the only way it will ever move from pure speculation to an actual currency.
Using bitcoin to buy groceries and such simply mostly isn't here yet(unless you use those BTC debit cards).
Don't forget gift cards. I use bitcoin for a great deal of my day to day spending by using gift cards. I would love to use a BTC debit card but since I flat out refuse to complete KYC, they have never been an option for me. I've had success in emailing a couple of the big gift card providers and asking them to start stocking cards for specific retailers I use though.