ALG is one of the unfavorite factions. They should merge it with Kruger.. they already have ties in lore.. and as far as I remember Kruger have problems with finances (ALG helping them).
Other way.. indeed kill all ALG indies(Even if I didn't saw any of them for a long time).. and make them only [ALG]. Restrict Golem only to [ALG]. Without FLhook there is no way you can "bump" trade faction activity.. especially if house have 4 trade factions. 2 might be active.. and others don't.. since there is no point in them.