Ethereum's native token, Ether (ETH) has lost almost half its value since Eric Trump's endorsement to add ETH to portfolios.Ether's crypto market share has plunged to its lowest level since 2020.Various market headwinds, including a major security breach and Trump's trade war, have contributed to the decline.Technical indicators suggest Ether's price could go below $1,500 in April, but a double-bottom pattern may trigger a rebound towards $2,500.