Explain situation around Bitcoin

[DrCutterfield]

List of unconfirmed transactions is growing. As rumored there is massive spam attack. Can you guys explain what's going on, is there any hope that mempool will diminish and who is the main villain?

[jansma43]

The total hashrate for BTC has dropped 50%. Mining BCH has become more profitable. I see that major miners like BTC.TOP have stopped completely mining BTC. As a result the average time between blocks has gone up to almost 20 minutes. It will take time for the difficulty to adjust for this and than it will be profitable for miners to start mining BTC again. Miners will switch back to BTC because it is in their interest to do so. Bitmain is still mining BTC because they don't want to see the value of BTC to drop.

[Amitabh S]

It seems to me more of an attack on BCH than BTC, because, collectively malicious mining pools can reverse transactions easier on the latter chain because of the quick difficulty adjustment (in theory at least).

[RawDog]

List of unconfirmed transactions is growing.
 who is the main villain?

SegWit Bitcoin is broken.  You have Greg Maxwell and Adam Back to thank for that.

Simple solution: just go use Bitcoin Cash.  It is the same Bitcoin you've known since 2009.