It is not possible for one person to be a trader and investor at the same time. If any trader claims to be an investor, I would call him a hypocrite. Because a trader is very likely to be tempted. He may not have the control to hold the investment while trading. It is almost impossible for a person to keep his savings for long when he is involved in trade. I can't call you an investor if you can't keep your savings for a long time. Short-term or price-sensitive investors are considered traders. By holding bitcoins for a short period of time he may consider himself an investor on his behalf but not an investor on our behalf or especially on my behalf.
Your idea is completely wrong. A person can be both an investor as well as a trader. Investing does not mean that we have to invest our entire money in Bitcoin, we can also trade in other coins. Basically we need to diversify our investments. We mainly do trading in short term. If we buy any coin for trading even if we see a positive growth of that coin in the market then we sell it even for our small profit. Bitcoin investment on the other hand we try to hold it for as long as we can. We have seen many people who are investing as well as trading, don't you consider them as investors?