beijing failure catalonia effort declare independence show taiwan independence also doom fail national unity paramount countries chinese official say wednesday china take dim view independence secessionist movements around world say adhere policy non-interference nations internal affairs beijing say oppose action split spain last month madrid assume direct rule catalonia spanish prime minister sack region secessionist government declare independence spain follow attempt referendum issue particularly sensitive china status self-ruled democratic taiwan claim china inherent territory many people would like proclaim formal independence red line beijing failure catalonia independence bid good thing say xiaoguang spokesman china policy-making taiwan affairs office failure catalonia referendum fully show protect national sovereignty territorial integrity paramount national interest east west tell regular news brief taiwan independence doom failure relations beijing taipei nosedive since island elect tsai ing-wen president last year china believe want formal independence taiwan tsai say want maintain peace china defend taiwan democracy security china suspend regular dialogue mechanism taiwan step military drill around island seek squeeze international space siphon taiwan remain diplomatic ally week taiwan say environment minister prevent attend annual u.n. climate meet germany despite credentials non-governmental participant due pressure china say taiwan blame poor state tie inability participate events climate talk taiwan side put blame others blame earnestly reflect things add china say catalonia situation show taiwan independence effort doom fail