Before thinking of what you should do IF you get hacked, i think its more important to focus on securing your private keys so you won't be hacked in the first place. I don't think it's that easy to hack btc wallets and all you need to remember is to keep your private keys to yourself and make sure you don't give it to others. Or get paper and hard wallets since these have less no no chance at all of getting hacked.

It only depends on your wallet. If you are using a wallet that has been trusted by everyone like professional traders that are trading day by day then i think that it is enough already to become secured on your coins.

It is the hard task for the hackers because the bitcoin has a lot of the wallets so the bitcoin is very bright and I hold the bitcoin and helping a lot of the people I hope the bitcoin will be able to be more safe because it is now possible and the bitcoin is being happen to buy the bitcoin and hold it as the bitcoin resource I have the bitcoin is now being invest by all the people and my all friends are investing in the bitcoin fearlessly.

Dont be scared if you know you put your bitcoin in secure and safe wallet, even you have a lot or few of coins. Just stay away from promising wallet because they are scams, also dont tell to anyone your password or private information. Also you must have backup of your wallet, atleast you can get your coin anytime if something happen.

As long as you are safe you should be ok. Private keys have to be kept safe and be careful of phishing. There can always be a fear that wallets themselves are not safe but paranoia creeps in when you start to think too much about it all.

As per my acknowledgement hacker never know how much BTC particular wallet have within it. They always try to phishing user to get trapped. And once trapped can get whatever amount it have in it. Now its another part if hacker got big amount. But everyone who use web or any online wallet must have to take security measures against own wallet and keep them safe and secure.

If user holding big amount of BTC then

1) Don't put all eggs in basket
2) Keep wallet backup private, safe and secure
3) Never share own credentials to anyone or even online
4) Use desktop wallet with paraphrase
5) Keep your computer clean with reputed updated antivirus
6) Use Hardware wallet

These preventive measures can help to keep your Bitcoins more safe.

I sugget that you spread your bitcoin over many distinct wallets as possible , so in the case one wallet get hacked , you still can save the other wallets ,  it like a jerry mouse game .

Yes of course if we have millions of btc then we should be wary that hackers will steal, all we have to do is divide bitcoin into some wallet, use all kinds of wallet such as offline wallet, web wallet, paper wallet and so on.

Paper Wallet and Hardware wallet shall be the best choice, and if using web wallet or exchange wallet better apply or adopt for extra security.
And I also agree, better to divide your Bitcoins or whatever coins you are holding into several wallets.
If you are taking too many precautions, then you can be calm and tension free, but better not let it slip out of your mind.